The Bike Helmet Reinvented


KAV and their customer service team are phenomenal. Helmet fits perfectly as you’d expect from a custom fit

Anthony Scardino

KAV has been a true custom protection experience from start to finish really happy with my new hockey helmets. I wear it everyday and it fits perfect best helmet in my career

Colten Teubert

Precision Fit from anywhere

Step 1: Measure

Personalize and order your helmet and we'll send you a fit kit and help you take your measurements.

Step 2: Analyze

Our machine learning algorithms derive your head shape and generate the dimensions for your helmet. 

Step 3: Fabricate

Your helmet is precision 3D printed, hand assembled here in Redwood City, CA and shipped to you.


I want the safest helmet possible

learn more


I like to forget I'm wearing a helmet

Aerodynamic & Cool

Help! I sweat a lot!

see the design process


I'm tired of replacing my helmets all the time


Sometimes I wear a cap with my helmet

Made in the USA

I want to support our economy

Guaranteed to fit

Try out our helmet for 30 days and if you experience any discomfort, talk to us directly and we'll make it right.

5 year warranty

Our helmets are engineered to support you in every situation. Send us back the helmet so we can make them even better, and you'll get a new one.

Crash replacement

Last thing you need to worry about after your crash is your helmet. Send us back the helmet that saved your life, and we'll ship a new one at 50% off.